Are you running these manually or automatically? If manually, you can create invisible hyperlinks.
Click on the Rectangle button and draw a rectangle. While rectangle is selected, change the Fill to No Fill and Line Color to No Line using the appropriate buttons. Right click the rectangle, choose Action Settings. Under the Mouse Click tab, click on Hyperlink to and then select the next presentation. So you can add these to the end of each presentation to go the next.
If automatically, found this from Sonia Coleman Microsoft PowerPoint MVP Team. "Something doesn't work with the new Viewer. It only works with ppview32.exe. The new Viewer can only open a present.lst file if you use a command line with the /L switch. It gets a bit complicated with paths and all, so the best thing is to:"
1. Assemble all of the presentations in a single folder.
2. Open NotePad and create a new file called present.lst. Save it to the folder that contains the presentations. The file should be a simple text file with just the name of each presentation, one per line. Make sure that the file extension is "lst" (that's l as in list). For example:
pressie1.pps
pressie2.ppt
.....etc.
3. Add the following files to the folder:
gdiplus.dll
intldate.dll
pptview.exe
ppvwintl.dll
saext.dll
unicows.dll
4. Then use NotePad to create a file called play.bat. Only the following lines should be in the file:
@ECHO OFF
pptview.exe /L "present.lst"
5. Now you can double click on play.bat and the Viewer should open and play the presentations in sequence.
